std::trunc

From Cppreference

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Defined in header <cmath>
​float       trunc( float arg );​		(C++0x feature)
​double      trunc( double arg );​		(C++0x feature)
​long double trunc( long double arg );​		(C++0x feature)

Computes nearest integer not greater in magnitude than arg.

Contents 1 Parameters 2 Return value 3 Notes 4 See also

Parameters

arg

-

floating point value

Return value

nearest integer not greater in magnitude than arg.

Notes

The integer value can be always represented by the given floating point type.

See also

floor	nearest integer not greater than the given value (function)
ceil	nearest integer not less than the given value (function)
round lround llround (C++0x) (C++0x) (C++0x)	nearest integer, rounding away from zero in halfway cases (function)